Mounting for sliding doors.



G. B. KURTZON & R. J. PAHLE.

MOUNTING FOR SLIDING DOORS.

APPLIoA'rIoN FILED 001211. 191s.

1, 1 20,063. Patented Dec. 8, 1914.

M @E fJJ mmm@ ,W

UNTTED t STATES PATEN T OFFICE.

GEORGE B. KURTZON AND RAYMOND JOI-IN FAHLE, OF CHICAGO, ILLINOIS, ASSIGNORS TO GARDEN CITY ILTINGv 6c MANUFACTURING COMPANY, 0F CHICAGO, ILLINOIS,

A COPARTNEIRSHIP.

MOUNTING FOR SLIDING DOORS.

Application filed October 11, 1913.

To all whom t may concern:

Be it knownthat we, GEORGE B. Knn'rzoN and RAYMOND J. FAHLE, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Mountings for Sliding Doors, of which the following is a specification.

This invention relates to improvements in mountings for sliding doors of the type commonly known as receding doors such as are used in book cases, show cases and similar constructions.

The especial object of the improvements which form the subject matter of this application is to provide the hardware attachments and mountings for cases and receding doors whereby a door which is pivotally connected at its upper corners may be swung outwardly from its closed position to a horizontal position and then pushed inwardly and supported in its horizontal and open position with the minimum amount of friction between the movable parts, and physical effort on the part of the operator.

A further object of our invenion is to provide the necessary hardware to accomplish the above results in a simple, strong and economical form, and to so connect and arrange 'same relative to the door and the case in which the door is hiuig as to provide against accidental displacement 0r the breakage of the parts.

A further object is to provide devices that will remain in proper alinement, thus avoiding the binding of the doors in their slideways in the case.

Having the foregoing and other objects of general utility in view, we have designed the hardware mounting illustrated in a preferred form in the accompanying drawing, in which Figure 1 shows partly in section, and partly in elevation, the upper and forward corner of a show case or similar structure and the upper left hand corner of a door frame and the hardware secured thereto which cooperates with the hardware fixed in the case, the door frame being shown in the position it assumes when the door is closed; Fig. 2 corresponds to the showing of Fig. 1, except that the door is shown in its open position; Fig. 3 is a plan View of the bearings and attached plates which are Specification of Letters Patent.

Serial N0. 794,573.

secured to the door; Fig. 4 is a plan view of the bearing and attached bracket which 1s secured to the inner wall of the case in which the door is mounted; Fig. 5 is a detail of a stop which limits the sliding movement of the door in its forward or outward direction.

Referring to the details of the drawing 6 represents one of the side walls, 6, the top wall, and 6h, a front frame member of a show case or book case. 7 represents the left hand side member of a door frame and 7a .the upper cross member of said frame while 7b designates the glass mounted in said frame. 8 indicates a strip of flat metal bent as at 8b, and provided with screw holes 8. One end of this plate is pivotally connected at 8 with a short flat strap of metal 9, which is provided with screw holes 9 by which it is secured with suitable screws to the outer face of the door frame member 7. The bend 8b provides an offset or depressed portion of the strap 8 in which there is mounted on pivots 10, two rollers 10 equipped with ball bearings 10b. The strap 8 is secured to a wood bar l1 arranged parallel with the door frame, and as there are two of the straps 8, one at each end of the door, it will be obvious that the wood bar 1l will be held rigidly in such parallel relation.

12 represents an angle bar which is attached to the inner face of the end wall 6 of the caso a short distance below the top 6l by screws 12a. This bar extends from near the front of the case the entire depth` of the latter. It will be understood that there are two of these bars, one at each end of the case.

The bracket plate 13 is provided with screw holes 13, and at one end is bent up at right angles to provide the lug 13h, and at the opposite end is mounted upon an axle 1411, the roller 111 equipped with the anti- Yfrictional ball bearings 14a. The bracket 13 is placed over the forward portion of the angle plate 12 so that the upper edge of the bracket is just below the horizontal flange of t-he angle and the roller 14 extends in front of the angle bar and the tread of the roller is also above the horizontal Hange of said angle bar, as clearly shown in Figs. 1

Patented Dec. 8,1914.

offset portion 15, and is provided with screw holes 15a by which it is attached to the under side of the wood bar 11, so that the oliset portion slides under the horizontal flange of the angle bar 12, and is adapted to abut against the lug 13b when the door is drawn forward the full limit necessary to eect its movement to a vertical position.

It will be understood that there willbe a plate 15 at each end of the bar 11, and that by reason of the Contact of the depressed portion 15b of said plates they will act as keepers to prevent the derailment of the rollers 10 where the top of the case 6L is not near enough to said rollers to prevent them from jumping the angel bar 12 which serves as a track.

The front member o' the top of the case is grooved as at 6c to facilitate the turning of the door on its pivotal connection 8a. wWhen the door is in its closed or vertical position the oset portion 8 of the plate 8 will rest upon the upper tread of the roller 14's, and the inner face of the side member 7 of the door frame will also rest against the periphery of said roller, as shown in Fig. 1, thus holding the door in a vertical plane and also causing it to move rearwardly or inwardly as soon as its lower edge is drawn outwardly, thus causing the door to recede or disappear quickly within the case and avoiding any umping orrattling which might otherwise takevplace.

As shown in the drawings the under side of the case top board 6a provides the bearing for the rollers 10 in case there'should be any upward thrust on said rollers, but it isV obvious that some other member or feature of construction might be provided in lieu of the board 6a in case the door was not mounted in the upper portion of the case or cavity.

Having thus described our invention what we claim is In mountings for sliding doors, plates pivotally connected with the door and having rollers mounted thereon, means connecting said plates to maintain them in parallel relation, fixed tracks arranged to have said rollers travel thereon, fixed brackets having rollers mounted thereon, said rollers arranged to support said first named plates and the door secured thereto, and means for Y limiting the forward movement of said door.

In testimony whereof we ailiX our signatures 1n the presence of two witnesses.

GEORGE B. KURTZON. RAYMOND JOHN FAHLE.

Witnesses:

D. SCHUHAM, R. A. Fosrnn.

@oplet of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. 

